Postcard is a lightweight email client built with GTK 4, libadwaita and Python.
Inspired by Geary’s three-pane layout, it provides folders, threaded conversations and a reading pane while keeping mail cached locally. It supports multiple IMAP and SMTP accounts, rich-text composition, full-text search and background mail synchronization.
This is free and open source software.
Key Features
- Multiple IMAP and SMTP accounts.
- Three-pane interface with folders, conversations and reading pane.
- Threaded conversations and nested mail folders.
- Full-text search across locally cached mail.
- Offline reading with background synchronization.
- Passwords stored securely in the system keyring.
- TLS and STARTTLS support with per-server configuration.
- Automatic server settings for many popular mail providers.
- Rich-text composer with formatting, lists and links.
- Compose, reply and forward messages with Cc and Bcc support.
- Drafts and Outbox support.
- Recipient autocomplete based on addresses found in mail.
- Displays HTML and plain-text messages.
- Blocks remote images until explicitly permitted.
- Archive, trash, move and undo actions for individual or multiple conversations.
- Desktop notifications for new mail.
- Optional sender avatars.
- Can register as the default handler for mailto links.
- No accounts, telemetry or external cloud service required.
Website: github.com/gxanshu/postcard
Support:
Developer: Anshu
License: GNU General Public License v3.0
Postcard is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| Graphical Email Clients | |
|---|---|
| Thunderbird | Popular free, cross-platform e-mail, RSS and newsgroup client |
| Kmail | Email component of Kontact |
| Sylpheed | Simple, lightweight client |
| Mailspring | New version of Nylas Mail |
| Claws Mail | Lightweight yet powerful and full-featured client |
| Evolution | Provides integrated mail, addressbook and calendaring functionality |
| Geary | Mail client for GNOME written in Vala |
| Astroid | Lightweight and fast Mail User Agent |
| Balsa | Email client for GNOME |
| Also known as Pantheon Mail | |
| Dodo | Based on the command line email swiss-army-knife notmuch |
| Aerion | Standalone lightweight e-mail client inspired by Geary |
Read our verdict in the software roundup.
 Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |
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